Late-stage chronic kidney disease in cats requires careful management to maintain quality of life. Understanding the welfare trajectory helps owners and vets make compassionate end-of-life decisions.
Late-stage CKD causes progressive multi-system suffering: uraemia causes nausea and neurological dysfunction, anaemia reduces energy and causes weakness, hypertension damages eyes and other organs, and dehydration causes discomfort. The trajectory is one of gradual deterioration with intermittent crises. The welfare challenge for owners and vets is determining when quality of life has declined to the point where humane euthanasia is the most compassionate option. Prolonging life at the cost of significant suffering — particularly through aggressive intervention in terminal-stage disease — is not welfare-positive. A planned, peaceful euthanasia before the cat reaches crisis is generally preferable to emergency euthanasia after a period of acute suffering.